in module SDT.py, you can calculate Speed using cal_speed() function, Distance using cal_dis() and Time using cal_time().

__init__.py module is very simple, you can print multiplication table using print_table()
, you can check whether a number is Palindrome or not using isPalindrome(),
you can find average/mean using mean(),
you can find unique elements of list using unique_list(),
you can find divisor of number using findDivisors(),
you can find greater or smaller numbers using greater() and smaller() similarly,
and you can calculate addition using sum(), subtraction using sub(), multiplication using mul() and division using div().